Short description

In sub-categories 1.A.3.b vi - Road transport: Automobile tyre and brake wear emissions from automobile tyre and brake wear in RT are reported. Therefore, these sub-category is an important source for a) particle emissions and b) emissions of heavy metals, POPs etc. included in these particles.

Trend discussion for Key Categories

NFR 1.A.3.b vi - Emissions from Tyre and Brake Wear is key source for emissions of

PM2.5 regarding level,

PM10 regarding level and trend,

TSP regarding level, and

Lead (Pb) regarding level and trend.

All reported emissons from tyre and brake wear are connected directly to the mileage driven by the road vehicles covered.

Particulate Matter - PM2.5, PM10 & TSP

Priority Heavy Metals

The emissions of these priority heavy metals are linked directly to the trend of mileage.
Here, lead emissions result mostly from brake wear (> 90% of over all emissions), whereas cadmium emissions result from both tyre & brake wear.

Recalculations

Recalculations were carried out due to a regular the revision of the TREMOD software, resulting in slight changes in mileage data for 2009 and 2010.
In contrast to this revision of activity data, emission factors remain unchanged compared to submission 2012 (see superordinate chapter).

For pollutant specific information on qualitative and quantitative impacts on 1990 and 2009 emission estimates see chapter 11. Recalculations and the following chapters.